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All Journal Jurnal EECCIS Emitor: Jurnal Teknik Elektro
Muhamad Alif Razi
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Engineering

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Effect of Parameter Modification on Torque Ripple in Interior Permanent Magnet Synchronous Motor Farha, Auditya; Ferdyanto; Achmad Zuchriadi; Muhamad Alif Razi
Emitor: Jurnal Teknik Elektro Vol 24, No 1: Maret 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v24i1.3613

Abstract

Electric motors are electromechanical machines commonly used in industry and automotive products. Interior Permanent Magnet Synchronous Motor (IPMSM) is a synchronous electric motor with a permanent magnet that is often used on electric vehicle engines. However, one of the characteristics of an electric motor with permanent magnet is the existence of torque ripples. The presence of torque ripples in electric motors can cause vibrations in the machine which affect efficiency, structural durability and operating speed. Therefore, it is necessary to make improvements or changes to the motor design to overcome this problem. This study was conducted to analyze the effect of a modification of the electric motor parameter on the torque value in the existing design. Modifications are applied to the existing design with an initial condition of torque ripples of 42.58%. This study modified the air gap, magnet angles, magnet thickness, and opening slot width. Modifications are carried out through a finite element method-based software simulation with the Taguchi method to reduce experimental configurations of design factors from 625 to 25 experiments. Through this research on parameter modification, the results of the analysis show that each modification of the design factor has an influence on the value of torque ripples. From the process of Analysis of Mean (ANOM), it can be seen that wider air gap and slot opening, the smaller torque ripples. Then, the greater magnet rib and thicker magnet cause the greater torque ripples.
Design of a Monitoring System and Automatic Power Circuit Breaker in Flood Prone Areas Based on the Internet of Things Ferdyanto; Wildan Hakim; Muhamad Alif Razi; Muhammad Raihan Fadhlurrahman
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 19 No. 3 (2025)
Publisher : Faculty of Engineering, Universitas Brawijaya

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Abstract

Flooding is a natural disaster that occurs due to overflowing water and can cause electrical short circuits in residential areas, endangering the safety of residents and damaging electronic devices. This study aims to design an automatic system for breaking and connecting electrical currents based on the Internet of Things (IoT) that is able to respond to water levels in real-time. The system uses an HC-SR04 ultrasonic sensor and an analog water level sensor connected to an ESP32 microcontroller. When the water reaches a certain limit, the ESP32 will activate the servo motor to cut off the electricity flow to the MCB and send a notification via Telegram. The method used is Research and Development (R&D), including hardware and software design, sensor integration, and system testing. The test results show that the system has a detection accuracy of 98% and is able to cut off or connect the current in less than 2 seconds. Notification delivery runs 100% on a stable network. This system is effective in increasing electrical safety during floods.
Co-Authors Achmad Zuchriadi Farha, Auditya Ferdyanto Muhammad Raihan Fadhlurrahman Wildan Hakim